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2 S eets SKI-ILL. GCELBRATING GUN.

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MULTIGHARG Patented Oct. 11,1892.

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2 Sheets-Sheet 2.

(No Model.)

J.-R. HASKELL. MULTIGHARGE 0R AGGELERATING GUN.

Patented Oct. 11, 1892.

WITNESSES Nrrnn rares l nrsNr enten..

JAMES R. fHASKEL'L, OF PAS-SAIC, NEW JERSEY, ASSGNOR TO JLA W. HASKELL,OF ASAME PLACE.

IVIU LTI CHARGE vO R ACC ELER'ATI N G G U N SPECIFIGATIONfformingVpartof LettersPatent No. 484,009, dated Getober 11, 1892.

Application filed March 24, 189). Renewed January15f1'891. `'AgainrenewedMeroh'Q, 1892. Serial No. 424,269. (No model.)

tionin such full, clear, and exact -terms as will enable any one skilledin the art to whichmy invention appertains or with which it is most fnearly connected to make .and use .the same, reference being had to theaccompanying drawings, making part'of this specification, and to theletters of reference marked thereon.

By Figure 1 of said drawings is shown a` longitudinal section throughone form of my improved gun. tudinal section through a gun made upon thesame general principle as that shown by Fig.

l. By Fig. 2 of the drawings is shown a transverse section through Fig.l on the line a.l

By Fig. 3 is shown a transverse section By Fig. 5 isv through Fig. l onthe line b. shown a transverse section through Fig. 4 ou the line c. ByFig. 6 is shown a transverse section through Fig. at on the line d.

consists of making the vgun of several transverse sections, as will beparticularly desig nated in the claims concluding this specification.

In the drawings, which show my invention applied in forms which I nowprefer to employ, the tirst section is the breech of the gun andcontains in itself the charge-chamber, as in an ordinary breech-loadinggun. The gun as a whole is made by uniting to this breech-secdrawings ofa single casting or forging, and

if they could be so made it would be very difficult, if notimpossible,to get such casting or forging without iiaws that would befatal By Fig. 4 is shown a longi-I eral sections-can be in process ofconstruction at one time upon different lathes and by different workmen,Whereas if the gun be made of one forging or casting only one lathe canbe used in its construction at the same time and not more than oneor'two workmen can be advantageouslyemployedupon it at the same time,thus necessitating a long time -andgreat expense to make the gun, and,moreover, by making the gun in sections, as illustrated,the openingsfrom the supplemental charge-chambers to the bore of the gun can be madelong or short, wide or narrow, large or small, as may be necessary toinsure `a free discharge of the gases from the pocket behind theprojectile.

The following is a description of the ac-v I companying drawings, whichshow some of The object of my invention is to facllitate theconstruction of multicharge-guns; and it l the forms in which myinvention ma be advantageously applied. It will be un erstood that myinvention is not limited to the precise forms herein illustrated ordescribed, as various modilications may be employed without departingfrom the general principle of my invention or the scope of theconcluding claims.

In the gun illustrated by Fig. l of the drawings, A is the breechcontaining the primary charge-chamber.

B is the first section, containing the first supplemental charge-chamberC. This charge chamber or pocket is formed upon the muzzle of the gun Aby boring out or casting the rear end of section B big enough to form apocket of the desired size, the sections A and B being united by meansof screw-threads D,

cut in the two sections in the manner shown. To the section B thesection F. is united and forms the supplemental pocket F, the same asinthe case of section B, and to the section E the section G is united, thesame as before, forming the supplemental pocket H around the muzzle ofthe section E, the muzzle of IOO f in Fig. 5.

which section is fitted snugly into the breech of the preceding sectionupon a diagonal plane, as shown in the drawings. In the muzzle of eachsection are cut three slots, as shown by f in Fig. 2, by which threeopenings are formed, leading from the bore of each section to thesupplemental pockets C, F, and II, the supplemental pockets beingannular chambers inclosing the muzzle of each section composing the gun,as shown by H', Fig. 3. The object of the openings f is to admit to thepockets the Haine from each preceding charge and ignite each succeedingcharge behind the shot or shell as it moves forward into the bore of thegun and to provide ample space for the escape of the gases from thesupplemental chambers to the bore of the gun. The several supplementalpock-l ets of the gun are charged through primingholes, which arestopped by breech-plugs O, having interrupted screws, the same as arenow in common use in breech-loading guns. These priming-holes are madein one or more sides of the supplemental chambers, as may be required,and each chamber is iitted with as many cleaning-holes, which are alsofitted with interrupted screw plugs, as may be thought necessary tothoroughly clean the pockets.

The same principle of construction as that above described is found inthe gun illustrated by Figs. 4, 5, and 6; but in the gun of Fig. 4 theseveral sections composing it are strengthened by bands shrunk upon theSeveral sections forming the gun, and in this casev the construction ofthe gun is further modified by additional internal sections A', B', C',and D', upon which the sections A", B", E", and Gr" are closely fittedor shrunk, the several sections being united by screwthreads, the sameas in Fig. l.

The communication between the several pockets in Fig. et and the bore ofthe gun is obtained in the same way as in Fig. l-viz., by means of slotscut in the muzzle or forward end of each section, as shown, also, by Toprevent the escape of gas through the joint between the sections B' andB" and between C' and E", aring Q of steel or some suitable metal isinserted between the ends of sections B' and C and extended up above thejoint between C and E", the intention being that the expansion of thegas in the pocketwill force the ring out against the joint tight enoughto prevent the escape of gas from the pocket through the joint betweenthe inner section C' and the outer section E", this ring to be insertedbetween the ends of each internal and external section, so as toeffectually close the joints between the two. To prevent the powder fromrunning out of the chambers c through the opening f into the bore of thegun7 collars c" are made around the forward end of each section at thebase of the openings fand bridges f'. By these means the chambers can beloaded lip gis formed on the inside section at the i rear of thechamber. The forward end of this lip on its outside is chamfered off toform a beveled seat against the outside section B the object of which isto form a gas-tight joint between the two parts, it being in tended thatthe explosion of the charge shall force the lip out against its seat, soas to close the joint absolutely. To accomplish this, in theconstruction shown in Fig. et a flange h is made on the internalsection, out of which the lip g is made, and in the rear side of thisflange pins t' are inserted to fitin corresponding holes in the externalsection to prevent the possibility of the two sections from beingtwisted out of their right relations. It will also be seen that theinner tube of the gun is formed by the inner longitudinal sections A',B', C', and D', connected together longitudinally by the externalsections A", B, E", and G", the gun depending for its longitudinalstrength upon these external sections, a mode of construction thatdiffers from all other modes of construction used in built-up guns, inwhich the internal sections have been composed of one continuous tubeupon which the longitudinal strength` of the gun depends.

I have stated that in the construction of this gundthe openings or slotsf cut in the muzzle end thereof, by which bridges or sections of solidmetal are left between the openings, may be omitted, the openings beingmade in the form of a ring, as shown by s', Fig. 4:; but I prefer tomake the gun with the bridges at the end of the muzzle, so as to forrn acontinuous bore for the projectile, the lands of the ritiing being outon the bridges between the openingsf, as shown in Fig. 5. By adoptingthis mode of construction there is no unnecessary space left to befilled with air or gas and the density of loading is much greater, and,moreover, the openingsf may be made from thirty to fifty per cent.larger in area than the bore of the gun, which becomes necessary toequalize the pressure due to the change in direction of the gas-pressurefrom the pocket to the bore of the gun through the openings f.

In the foregoing specification I have incidentally referred to a few ofthe modilications which may be adopted in the practice of my invention;but I have not endeavored to specify all the modifications which may beemployed, the object of this specification being to instruct personsskilled in the art to practice my invent-ion in its present preferredforms and to enable them to understand its nature, and I desire it to bedistinctly understood that the forms mentioned by me of a IOO IIO

IIS

few modifications are in no way intended to exclude others not referredto, but which are within the spirit and scope of my invention.

Many of the details and combinations illustrated and above describedare,.not essential to my several inventions, broadly considered. Allthis will be indicated in the concluding claims, as the omission of anelement or the omission of reference to the particular features ofelements mentioned are intended to be formal declarations of the factthat the omitted elements or features are not essential to the inventiontherein covered. 1

Having now described the structures e|n` bodying my improvements inmultichargeguns, I claim as new and desire to secure by Letters Patentl.A multicharge-gun consisting of a breechsection, combined with one ormore supplemental sections, one or more of said supplemental sections tobe provided with an independent charge-chamber charged with any suitableexplosive and opening into the bore of the gun and dischargingits loadbehind the advancing projectile subsequent to the explosion of thebreech-charge.

2. A multicharge-gun consisting of a breechsection, combined with one ormore supplemental sections constructed to unite with and form, incombination with another section, an annular pocket or charge-chambersuitable for receiving, confining, and sustaining a charge of anysuitable explosive about the muzzle or forward end thereof and openinginto the bore of the gun behind the projectile after the explosion ofthe primary charge.

8. A multicharge-gun consisting of a series of sections unitedlongitudinally to the breech of each section succeeding thebreech-section, forming an annular charge-chamber upon and around themuzzle of the breech, and said charge-chamber being made suitable toreceive, confine, and sustain a charge of any suitable explosive,opening into the bore of the gun, and being supplied with the necessarypriming and cleaning holes fitted with the necessary stop-pins, asdescribed.

4. A multicharge-gun consisting of two or more separately-formedcylindrical sections screwed together longitudinally, each of saidsections being made independent of all the rest and combined withseparate independent charge-chambers suitable to receive, confine, andsustain a charge of any suitable explosive to discharge successivelyfrom the several chambers into the bore of the gun when the severalsections are united, as described.

5. A multichargegun consisting of a succession of external sectionsunited together longitudinally upon central longitudinal sections,forming the internal wall and bore of' the gun, said several parts beingtted and Where it may be necessary shrunk together to unite thewholef'ln a solid structure.

6. In a multicharge-gun consisting of several sections, one or more ofwhich contains a supplemental charge-chamber, a band of some suitablemetal shrunk upon the section over the charge-chamber, substantially asdescribed.

7. In a multichargegun consisting of a series of sections containingcharge-chambers, a gas-check ring interposed between the joining ends ofthe sections in which the bore is made, substantially as described.

8. In a multicharge-gun suitable for firing explosives, composed of twoor more sections united longitudinally and containing supplementalcharge-chambers for receiving, sustaining, and conti ning any suitableexplosive, opening into the bore of the gun, a channel or openingleading from the supplemental explosive-chamber to the bore of the gun,equal to or greater in area than the bore of the gun.

9. A multicharge-gun suitable for firing explosives, consisting of aseries of supplemental sections and charge-chambers formed around themuzzle end of one section and in the breech of another section, saidexplosivechambers being the result of the form and union of the severalsections.

10. A mult-icharge-gun consisting of a series of supplemental sectionscontaining chargechambers to receive, conne, and sustain a suitableexplosive, as set forth, the several sections being united byscrew-threads cutl therein or thereon.

1 1. A multicharge-gun consisting of aseries of external and internalsections, the internal sections being held together longitudinally bythe longitudinal union of the external sections, the gun depending forits tensile strength upon the union of the external sections,substantially as described.

l2. In a multicharge-gun in which the supplemental charge-chamber isformed around the muzzle and in the breech of contiguous sections, acollar or flange by which the powder or other explosive is preventedfrom overiiowing into the bore of the gun.

JAMES R. HASKELL. l/Vitnesses:

J. EDGAR BULL, R. A. CORINALDI.

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